Execute python or r code in vim

build.vim

" Run standard compile/run commands
function! RunBuildCommand()
    " Choose between python3, Rscript based on extension
    w
    cd %:p:h
    let filename = expand('%t')
    let extension = expand('%:e')
    let basename = expand('%:r')
    
    " rscript
    if extension == 'r'
        execute '!Rscript ' . filename
    endif

    " python
    if extension == 'py'
        execute '!python3 ' . filename
    endif

    " latex
    if extension == 'tex' || extension == 'tikz'
        execute '!latexmk -pdf ' . filename . '; mv *.log *.fls *latexmk *.blg *.aux *.bbl *.run.xml *.bcf log/'
    endif

    " markdown -> pandoc
    if extension == 'md'
        execute '!pandoc -o ' . basename . '.docx ' . filename
    endif

endfunction
map <Leader>rr :call RunBuildCommand()<CR>